TLC59108IPWR Description

The TLC59108IPWR is an 8-bit LED driver operated by the I2C bus and designed for red/green/blue/amber (RGBA) color mixing and backlighting. Each LED output has its own fixed-frequency individual PWM controller with an 8-bit resolution (256 steps) that runs at 97kHz and a duty cycle range of 0 to 99.6%. Each LED can be tuned to a different brightness level using the individual PWM controller. A group PWM controller with an additional 8-bit resolution (256 steps) has a fixed frequency of 190Hz and an adjustable frequency of 24Hz to once every 10.73 seconds, with a duty cycle of 0 to 99.6%. The group PWM controller dims or blinks all of the LEDs at the same time with the same value. At both individual and group PWM controller levels, each LED output can be turned off, on (no PWM control), or set to its individual PWM controller value. Up to 14 devices can be connected to the same bus using four hardware address pins.

TLC59108IPWR Features

• Active-low reset

• Supports hot insertion

• No glitch on power-up

• Internal power-on reset

• Green product and no Sb/Br

• 17V Maximum output voltage

• Noise filter on SCL/SDA inputs

• 8 Constant-current output channels

• Software enable and disable for I2C bus address

• Constant output current adjusted through an external resistor

• 25MHz internal oscillator requires no external components

• The software reset feature (SWRST Call) allows the device to be reset through the I2C bus

TLC59108IPWR Applications

• Industrial

• LED Lighting

• Hobby & Education